/** Configuration key for allowing localhost authentication bypass. */
    protected static final String SPNEGO_ALLOW_LOCALHOST = "spnego.allow.localhost";

    /** Configuration key for prompting NTLM authentication. */
    protected static final String SPNEGO_PROMPT_NTLM = "spnego.prompt.ntlm";

    /** Configuration key for allowing unsecure basic authentication. */

- Kubeadm: Added support for ECDSA-P384 as an encryption algorithm type in v1beta4. ([#131677](https://github.com/kubernetes/kubernetes/pull/131677), [@lalitc375](https://github.com/lalitc375))
- Kubeadm: Fixed an issue where etcd member promotion failed with an error indicating the member was already promoted. ([#130782](https://github.com/kubernetes/kubernetes/pull/130782), [@BernardMC](https://github.com/BernardMC))

- Kubeadm: fixed issue where etcd member promotion fails with an error saying the member was already promoted ([#132281](https://github.com/kubernetes/kubernetes/pull/132281), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

## Dependencies

### Added

- Kubeadm: fixed issue where etcd member promotion fails with an error saying the member was already promoted ([#132280](https://github.com/kubernetes/kubernetes/pull/132280), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)